{"id":"W2088571357","doi":"10.1103/physrevlett.93.107203","title":"Magnon Squeezing in an Antiferromagnet: Reducing the Spin Noise below the Standard Quantum Limit","year":2004,"lang":"en","type":"article","venue":"Physical Review Letters","topic":"Quantum and electron transport phenomena","field":"Physics and Astronomy","cited_by":117,"is_retracted":false,"has_abstract":true,"ca_institutions":"Institute for Microstructural Sciences","funders":"","keywords":"Physics; Magnon; Spins; Antiferromagnetism; Condensed matter physics; Quantum limit; Ground state; Excitation; Quantum fluctuation; Spin (aerodynamics); Quantum; Spin wave; Magnetization; Femtosecond; Quantum mechanics; Laser; Ferromagnetism; Magnetic field","routes":{"ca_aff":true,"ca_fund":false,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"codex-gemma-dda1882f352a","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0004129143,0.0002758565,0.0004248942,0.00002847228,0.0002242974,0.00007375295,0.0004639458,0.000009486543,0.00007268738],"category_scores_gemma":[0.000006051479,0.0001613583,0.0002273766,0.0003770821,0.0001332646,0.0002527795,0.00003092818,0.0005279689,0.0000556287],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.00006446175,"about_ca_system_score_gemma":0.00006537485,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.0003226916,"about_ca_topic_score_gemma":0.00001931938,"domain_scores_codex":[0.9982704,0.000141512,0.0003657378,0.0003817458,0.0002977993,0.0005428424],"domain_scores_gemma":[0.9991372,0.0000635409,0.000127104,0.000555928,0.00002569505,0.00009056943],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"theoretical_or_conceptual","study_design_gemma":"observational","study_design_scores_codex":[0.0004112899,0.003752194,0.0313574,0.003190252,0.0004252731,0.0001235037,0.0157228,0.03572913,0.2647312,0.4537559,0.008303078,0.1824979],"study_design_scores_gemma":[0.0214173,0.007336749,0.3222828,0.0437986,0.004456765,0.00004861728,0.004178056,0.031441,0.04195613,0.2935256,0.215266,0.01429239],"study_design_candidate":"theoretical_or_conceptual","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9679961,0.003040391,0.0007062662,0.02724289,0.0000812642,0.0005819079,0.0000132725,0.00003129974,0.0003066418],"genre_scores_gemma":[0.9934883,0.0004621489,0.00004091426,0.005413812,0.0004348583,0.00009329685,0.00002786656,0.00003402492,0.00000478318],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.2909254,"threshold_uncertainty_score":0.6580001,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01376205663513792,"score_gpt":0.2752561383426592,"score_spread":0.2614940817075213,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). Scores rank; they never assert a category."}}